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Nokia has filed more claims of patent infringement against HTC with the US International Trade Commission (ITC), yesterday. The new suit, the second ITC complaint from Nokia against HTC, appears to be targeting the HTC One, along with a number of other devices in the HTC catalog, with another six patents being used for the legal attack.

"We began actions against HTC in 2012 to end the unauthorized use of our proprietary innovations and technologies," said Nokia toAll Things D, and after referencing a previous battle through the German courts, continued "HTC has shown no intention to end its practices; instead it has tried to shift responsibility to its suppliers. We have therefore taken these further steps to hold HTC accountable for its actions."

The list of six patents, unearthed byFlorian Mueller, includes ones for video codecs, compact multi-frequency radio components, a modulation structure for optimizing the ratio of signal to noise in mobile transmissions, and a "versatile antenna switch architecture." Of the two more notable patents, one concerns the layout of components inside a mobile device for high performance and an "appealing design," which Nokia believes applies to unibody devices, as well as one covering a method for adding new services to a mobile phone, though since this effectively describes how Android phones install apps and updates through Google Play, it is likely to force Google to intervene.

The ongoing battles between Nokia and HTC reached a point last month where a component supplier was forced to stop selling a specific type of microphone to HTC for use in its flagship device.